47096729 has 4 divisors (see below), whose sum is σ = 47142180. Its totient is φ = 47051280.

The previous prime is 47096713. The next prime is 47096737. The reversal of 47096729 is 92769074.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40195600 + 6901129 = 6340^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 47096729 - 2⁴ = 47096713 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47096729.

It is not an unprimeable number, because it can be changed into a prime (47096129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21134 + ... + 23255.

It is an arithmetic number, because the mean of its divisors is an integer number (11785545).

Almost surely, 2^47096729 is an apocalyptic number.

It is an amenable number.

47096729 is a deficient number, since it is larger than the sum of its proper divisors (45451).

47096729 is a wasteful number, since it uses less digits than its factorization.

47096729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45450.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 47096729 is about 6862.7056617634. The cubic root of 47096729 is about 361.1300115148.

The spelling of 47096729 in words is "forty-seven million, ninety-six thousand, seven hundred twenty-nine".